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We show that the canonical seesaw mechanism implemented by the
U
(
1
)
B
−
L
gauge symmetry provides two-component dark matter naturally. The seesaw scale that breaks
B
−
L
defines a residual gauge symmetry to be
Z
6
=
Z
2
⊗
Z
3
, where
Z
2
leads to the usual matter parity, while
Z
3
is newly recognized, transforming quark fields nontrivially. The dark matter components—that transform nontrivially under the matter parity and
Z
3
, respectively—can gain arbitrary masses, despite the fact that the
Z
3
dark matter may be heavier than the light quarks
u
,
d
. This dark matter setup can address the XENON1T anomaly recently observed and other observables, given that the dark matter masses are nearly degenerate, heavier than the electron a... |
We present the features of the fully flipped 3-3-1-1 model and show that this model leads to dark matter candidates naturally. We study two dark matter scenarios corresponding to the triplet fermion and singlet scalar candidates, and we determine the viable parameter regimes constrained from the observed relic density and direct detection experiments. |
It is shown that the presence of a vector doublet is suitable to address neutrino mass, dark matter, and the recent muon anomalous magnetic moment. |
